Statistics::R::REXP::Null(3pm)

Usage

    use Statistics::R::REXP;
    
    my $null = Statistics::R::REXP::Null->new();
    say $rexp->is_null;
    print $rexp->to_pl;

Version

version 1.0002

Overview

An object of this class represents the null R object ("NILSXP"). The null object does not have a value or attributes, and trying to set them will cause an exception.

Methods

"Statistics::R::REXP::Null" inherits from Statistics::R::REXP and adds no methods of its own.

Accessors

sexptype: SEXPTYPE of null objects is "NILSXP".

to_pl: The Perl value of "NULL" is "undef".

attributes: Null objects have no attributes, so the attributes accessor always returns "undef".

Bugs and limitations

Classes in the "REXP" hierarchy are intended to be immutable. Please do not try to change their value or attributes.

There are no known bugs in this module. Please see Statistics::R::IO for bug reporting.

Support

See Statistics::R::IO for support and contact information.

Copyright and license

This is free software, licensed under:

  The GNU General Public License, Version 3, June 2007

Releases

Unchanged in 2 releases since Debian 12 (Bookworm).

12–13